Commit 97f92143 authored by Michael Niedermayer's avatar Michael Niedermayer
Browse files

Support reading packed YUV422 10bit samples from Sveriges Television AB (SVT)

which have AFAIK been created for the jvt:
ftp://vqeg.its.bldrdoc.gov/HDTV/SVT_exports/SVT_YUV10_Exports_/NewMobCal_YUV10_720p5994_/
I have called the format v210x due to its similarity to v210, note though I have
not confirmed that v210x is different from actual v210 samples it just is
different from the description of v210 I am aware of.

Originally committed as revision 18654 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 297b5a3f
......@@ -229,6 +229,7 @@ OBJS-$(CONFIG_TSCC_DECODER) += tscc.o msrledec.o
OBJS-$(CONFIG_TTA_DECODER) += tta.o
OBJS-$(CONFIG_TXD_DECODER) += txd.o s3tc.o
OBJS-$(CONFIG_ULTI_DECODER) += ulti.o
OBJS-$(CONFIG_V210X_DECODER) += v210x.o
OBJS-$(CONFIG_VB_DECODER) += vb.o
OBJS-$(CONFIG_VC1_DECODER) += vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o
OBJS-$(CONFIG_VC1_VAAPI_HWACCEL) += vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o vaapi.o vaapi_vc1.o
......
......@@ -167,6 +167,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (TSCC, tscc);
REGISTER_DECODER (TXD, txd);
REGISTER_DECODER (ULTI, ulti);
REGISTER_DECODER (V210X, v210x);
REGISTER_DECODER (VB, vb);
REGISTER_DECODER (VC1, vc1);
REGISTER_DECODER (VC1_VDPAU, vc1_vdpau);
......
......@@ -193,6 +193,7 @@ enum CodecID {
CODEC_ID_TQI,
CODEC_ID_AURA,
CODEC_ID_AURA2,
CODEC_ID_V210X,
/* various PCM "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
......
/*
* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
#include "libavutil/bswap.h"
static av_cold int decode_init(AVCodecContext *avctx)
{
if(avctx->width & 1){
av_log(avctx, AV_LOG_ERROR, "v210x needs even width\n");
return -1;
}
if(avcodec_check_dimensions(avctx, avctx->width, avctx->height) < 0)
return -1;
avctx->pix_fmt = PIX_FMT_YUV422P16;
avctx->bits_per_raw_sample= 10;
avctx->coded_frame= avcodec_alloc_frame();
return 0;
}
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
{
int y=0;
int width= avctx->width;
AVFrame *pic= avctx->coded_frame;
const uint32_t *src= avpkt->data;
uint16_t *ydst, *udst, *vdst, *yend;
if(pic->data[0])
avctx->release_buffer(avctx, pic);
if(avpkt->size < avctx->width * avctx->height * 8 / 3){
av_log(avctx, AV_LOG_ERROR, "Packet too small\n");
return -1;
}
if(avpkt->size > avctx->width * avctx->height * 8 / 3){
av_log(avctx, AV_LOG_ERROR, "Probably padded data, need sample!\n");
}
pic->reference= 0;
if(avctx->get_buffer(avctx, pic) < 0)
return -1;
ydst= pic->data[0];
udst= pic->data[1];
vdst= pic->data[2];
yend= ydst + width;
pic->pict_type= FF_I_TYPE;
pic->key_frame= 1;
for(;;){
uint32_t v= be2me_32(*src++);
*udst++= (v>>16) & 0xFFC0;
*ydst++= (v>>6 ) & 0xFFC0;
*vdst++= (v<<4 ) & 0xFFC0;
v= be2me_32(*src++);
*ydst++= (v>>16) & 0xFFC0;
if(ydst >= yend){
ydst+= pic->linesize[0]/2 - width;
udst+= pic->linesize[1]/2 - width/2;
vdst+= pic->linesize[2]/2 - width/2;
yend= ydst + width;
if(++y >= avctx->height)
break;
}
*udst++= (v>>6 ) & 0xFFC0;
*ydst++= (v<<4 ) & 0xFFC0;
v= be2me_32(*src++);
*vdst++= (v>>16) & 0xFFC0;
*ydst++= (v>>6 ) & 0xFFC0;
if(ydst >= yend){
ydst+= pic->linesize[0]/2 - width;
udst+= pic->linesize[1]/2 - width/2;
vdst+= pic->linesize[2]/2 - width/2;
yend= ydst + width;
if(++y >= avctx->height)
break;
}
*udst++= (v<<4 ) & 0xFFC0;
v= be2me_32(*src++);
*ydst++= (v>>16) & 0xFFC0;
*vdst++= (v>>6 ) & 0xFFC0;
*ydst++= (v<<4 ) & 0xFFC0;
if(ydst >= yend){
ydst+= pic->linesize[0]/2 - width;
udst+= pic->linesize[1]/2 - width/2;
vdst+= pic->linesize[2]/2 - width/2;
yend= ydst + width;
if(++y >= avctx->height)
break;
}
}
*data_size=sizeof(AVFrame);
*(AVFrame*)data= *avctx->coded_frame;
return avpkt->size;
}
AVCodec v210x_decoder = {
"v210x",
CODEC_TYPE_VIDEO,
CODEC_ID_V210X,
0,
decode_init,
NULL,
NULL,
decode_frame,
CODEC_CAP_DR1,
};
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment